Hoping that exploration, research, and study experiences at the seashore will provide a deeper and more meaningful insight and understanding into the relationship between man and his total environment, the booklet describes the seashore environment of Long Island (New York) and suggests learning activities that can occur at the seashore. Part I introduces Long Island's many habitats (wave-washed sandy beaches, rocky shores, shallow bays, busy harbors, grassy marshes, tidal flats), common plants (plankton, seaweed, marram, false heather, seaside goldenrod, Japanese pine, phragmites) and animals (mole crabs, sandhoppers, barnacles, oysters, snails, gulls, plovers, terns). Part II suggests activities for small groups of students working together, indicating the type of site required for the activity, materials needed, procedures, worksheets, charts, and discussion questions. Activities include: beach combing at high and low tide; beach profiles; animal work sheets; and study of general climate, tides, plankton, seine nets, sand, dunes, hermit crabs, tidal pools, cord grass, tidal flats, barnacles, barnacle succession, and birds. Ideas for expressing thoughts, feelings, and impressions and interdisciplinary activities in science, art, social studies, English, math, home economics, shop, photography, and music are listed. (NEC)